Mr. Arno Reuser, Arno the Curious, is a Master Librarian who has done more for the practice of Open Source Inteligence (OSINT) in support of national security than anyone else in Europe. He has been a pioneer in the explotiation of badly-delivered OSINT from private sector vendors, writing original PERL programs to make sense of their feeds; he has known how to make the most of the Internet; and above all, he has known how to find and engage human intellects around the world, each capable of producing unique tailored knowledge not available online or in print. He is the Master Librarian of the OSINT world and all seven intelligence tribes.

Arno Reuser is one of the handful of multinational kindred spirits who created the international Open Source Intelligence (OSINT) movement that kicked off in 1992 and is now morphing into Multinational, Multiagency, Multidisciplinary, Multidomain Information-Sharing and Sense-Making (M4IS2).